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Ecosystem
study guide
| Term | Definition |
|---|---|
| ecosystem | all the living and nonliving things that interact with each other in an area |
| producer | any organism that produces, or makes it own food; living part of an ecosystem |
| carbon dioxide | a gas found in air; plants need it |
| photosynthesis | the process of using carbon dioxide an water to make food |
| oxygen | a gas found in air; humans need it |
| consumer | an organism that gets energy by eating other organisms; living part of an ecosystem |
| decomposer | an organism that breaks down dead organism and their wastes; living part of an ecosystem |
| fungi | one group of living things that are neither plant nor animal |
| bacteria | one group of organisms that are too small to be seen without a microscope |
| compost | a mixture of soil and decaying matter that provides the materials that plants need |
| digestion | the process that breaks down food into simple materials that an animals's body can use |
| circulation | the process of moving blood in a large, complicated loop through the body |
| food chain | a model of the path of energy through a series of organisms in an ecosystem |
| food web | a model that shows the many connected food chains and feeding relationships |
| predator | an animal that captures and eats other animals |
| prey | the animal that is captured and eaten |
| disturbance | an event that changes an ecosystem for a long period of time |
| succession | the changes that take place in an ecosystem after a disturbance |
Created by:
Karen Dube
Popular Ecology sets